Device for turning shafting



(No Model.) 2 Sheets-Sheet 1.

JFM HAWES.

DEVICE FOR TURNING SHAPTING. No. 261,344. 1 Patented July 18, 1882.

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' M del.) 2 Sheets-Sheet 2 J. M. HAWES.

DEVICE FOR TURNING SHAFTING.

No. 261,344. Patented July 18, 1882.

WITNESSES W. a,

ugraphnr. Washinglun. n. c,

U ITED STATES PATENT. OFFICE.

JAMES M. HAWES, OF GREAT FALLS, NEW HAMPSHIRE.

DEVICE FOR TURN I'NG SHAFTlNG.

SPECIFICATION formingpart of Letters Patent No. 261,344, datedJ'uly 18,1882.

Application filed November 9, 1881. v(No model.)

To all whom it may concern:

Be it known that I, JAMES M. HAWES, of Great Falls, in the county ofStraiford and State of New Hampshire, have invented an ImprovedDressing-Head for Finishing and Smoothing Shaftin'g; and I do herebydeclare that the following is a full and exact description thereof,reference being had to the accompanying drawings, making part of thisspecidetached.

Like letters designate corresponding parts in all of the figures.

In the construction of this instrument I enlploy a stationary ring-disk,A, through the open center of whichthe shaft or tube to be finishedround and smoothed is to pass, the said disk being secured to a suitableholding. yoke or frame andthe shaft to be revolved therein and fed alongthrough it. This disk for finishing shafts varying in sizesay fromthreefourths of an inch to fourinches in diametermay be about ten inchesin diameter, the central aperture thereof being of sufficient size toadmit the largest shafting to be finished by the instrument. One side ofthe disk has two inwardly-projectin g flanges, a b, one at the outer andthe other at the inner periphery thereof, as shown in Fig. 2, bothprojecting sufficiently from the face of the disk to admit the,operative parts of the instrument (hereinafter set forth) therein. Theflange side of the disk is or may be covered with another ring-disk orface-plate, B, thus inclosing the parts located between the flanges.This plate or disk is secured to the flanged disk by screws 00, so thatit may be readily removed. In the flanges a I) mortises or guideways areformed for the reception of radial bearing-slides (10, arranged atsuitable and preferably uniform intervals around the circle, as shown,the inner ends of which, when adjusted to an exact circle of therequired diameter, serve unitedly as a bearing suit different diametersof shafts, I form lateral heads or projections d d on their outer ends,through which radial screws E E pass and thence screw into the outerflange, a, of the disk A, substantially as represented. The heads f f ofthese set-screws bear against the outer surfaces of the slide-heads d d,and jamnuts g g on the screws are, tightened against the inner surfacesof these heads 11 d when the slides are properly adjusted for anydiameter of shaft. Also, in a suitable way or ways of the disk A asmoothing-cutter, G, is located, so as to be similarly adjusted in aradial position and direction out and in to suit the size of shaft to befinished. This cutter is or may be adjusted by a set-screw, H, .in thesame manner as the bearing-slides, between two of which it is located.It is to be understood that this smoothing-cutter is situated an inch ortwo behind a suitable instrument for first reducing the shaft to auniform size, and that its action on the shaft follows the reducingaction and by the same movement of the shaft, though this is notessential. For perfect work this smoothing-cutter is also to precede theposition of the bearing-slides G O, which therefore hold the shaftalways where it is finished, so that their holding thereof is always asaccurate as possible. Hence I make the guideway of the cutter justforward of those of the bearing-slides in the holding-disks, as shown orindicated in Figs. land 2. In many cases,

however, I find it desirable and generally preferable to adapt thecutter to be inserted in one of the slideways and constructed to beadjusted in the same way. The slide 0, which is removed to permit theinsertion of the cutter, is not essential to a proper centering of theshaft, there being enough left for that purpose. This constructionisespecially shown in Fig. 3. To enable this to be effected the cutter andslides have at their inner ends the form and relation concentricguide-flanges, (62), the bearing-slides O O, and cutter G, guided in thetwo flanges, and the adj listing-screws E E H, screwing into the outerflange, a, for adjusting the said slides and cutter, substantially asand for the pur- I pose herein specified.

The foregoing specification signed by me 20 this 24th day of June, 1881.

J. M. HAWES.

Witnesses:

EUGENE M. HAWES, ELDoNIs B. WHITE.

